It's also encroachment in NCAA rules.
Oddly enough, encroachment in NCAA is a dead-ball foul, while defensive offside is a live-ball foul.
In FED, both offensive encroachment and defensive encroachment are dead-ball fouls.
But to answer your question... it's almost never called, because it almost never happens. But, interestingly enough local college game here last year ended on a 10-second runoff due to offensive encroachment.
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